public class LongDivision {

    public static void main(String[] args) {

        final long MICROS_PER_DAY = 24L * 60 * 60 * 1000 * 1000;

        final long MILLIS_PER_DAY = 24L * 60 * 60 * 1000;

        System.out.println(MICROS_PER_DAY/MILLIS_PER_DAY);

    }

}
